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Several Bayesian model combination schemes, including some novel approaches that simultaneously allow for parameter uncertainty, model uncertainty and robust time varying model weights, are compared in terms of forecast accuracy and economic gains using financial and macroeconomic time series....
Persistent link: https://www.econbiz.de/10011256933
We study a class of robust, or worst case scenario, optimal control problems for jump diffusions. The scenario is represented by a probability measure equivalent to the initial probability law. We show that if there exists a control that annihilates the noise coefficients in the state equation...
Persistent link: https://www.econbiz.de/10008855626
We consider some robust optimal portfolio problems for markets modeled by (possibly non-Markovian) jump diffusions. Mathematically the situation can be described as a stochastic differential game, where one of the players (the agent) is trying to find the portfolio which maximizes the utility of...
Persistent link: https://www.econbiz.de/10008855842
The choice and estimation of joint probability distribution function are key steps in portfolio optimization problem. As such distribution functions pair-copula constructions (PCC), or vine-copulae, on arbitrary R-vines are used. For the investor with exponential utility criterion the NYSE oil...
Persistent link: https://www.econbiz.de/10010891901
Purpose Portfolio optimization is the process of making an investment decision on a set of assets to realize high returns with low risk. It has three major stages: asset selection, asset weighting and asset management. Asset selection is an important phase because it influences asset allocation...
Persistent link: https://www.econbiz.de/10014881968
Purpose – The purpose of this paper is to improve the transparency of European emerging real estate market dynamics and performance attributes in the wake of the 2007-2008 global financial crisis (GFC). The paper examines the extent and nature of inter-relationships between three emerging real...
Persistent link: https://www.econbiz.de/10014898799
Purpose – Enhanced risk management through the application of mathematical optimization is the next competitive‐advantage frontier for the primary‐insurance industry. The widespread adoption of catastrophe models for risk management provides the opportunity to exploit mathematical...
Persistent link: https://www.econbiz.de/10014901632
Recent and presumable future developments tend to increase the risks associated with farming activities. These include climate risks, which have always played an important role in farming. Weather‐based instruments can be valuable tools to reduce the risk associated with unfavourable climate...
Persistent link: https://www.econbiz.de/10014667244
Over the last century, the passenger airline industry has undergone a series of transformations, with Lufthansa being a key player not only in Europe, but also worldwide. This case study traces Lufthansa's development, from its origins up until its current status, and outlines its expansion by...
Persistent link: https://www.econbiz.de/10014634473
Over the last century, the passenger airline industry has undergone a series of transformations, with Lufthansa being a key player not only in Europe, but also worldwide. This case study traces Lufthansa's development, from its origins up until its current status, and outlines its expansion by...
Persistent link: https://www.econbiz.de/10015046545